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Finding the Fourth Proportional to 503,706.05, 695,126.80 and 274,275.90

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Solution

The fourth proportional to 503,706.05, 695,126.80 and 274,275.90 is: 378,507.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,706.05 : 695,126.80 = 274,275.90 : x
  2. Step 2: Convert to fraction form
    503,706.05/695,126.80 = 274,275.90/x
  3. Step 3: Cross multiply
    503,706.05x = 695,126.80 × 274,275.90
  4. Step 4: Simplify right side
    503,706.05x = 190,656,527,998.43
  5. Step 5: Solve for x
    x = 190,656,527,998.43/503,706.05
  6. Step 6: Final answer
    x = 378,507.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.